The DEWALT 20-Volt MAX Wet/Dry Vacuum (DCV517B) is ideal for use with either dry or wet materials. Its efficient HEPA filter traps 99.97% of dust and is great for general cleanup on your job site or around the house. This vacuum is part of the versatile 20-Volt Max system and is sold on its own, so you can add it to your collection and use with your existing DEWALT battery and charger. The 20-Volt Max Premium XR lithium-ion battery outperforms every DEWALT battery that came before it and thats saying a lot. Get long-lasting power and prolonged life from this 4 Ah battery that weighs just 1.42 lbs. A built-in charge meter lets you know how much juice remains so you don't get caught powerless on a job site.